- Traditional Chinese Character(HanT):
退化期
- Simplified Chinese Character(HanS):
退化期
- Bopomofo(Mandarin Phonetic Symbols): ㄊㄨㄟˋ ㄏㄨㄚˋ ㄑㄧˊ (ㄊㄏㄑ)
- Bopomofo(Zhuyin Keyboard Input/IME): wjo4cj84fu6
- 「退化期」的注音符號/「退化期」怎麼發音怎麼唸: ㄊㄨㄟˋ ㄏㄨㄚˋ ㄑㄧˊ
- (ASCII) Hanyu Pinyin: "tuihuaqi" "Tui4Hua4Qi2" "Tui4 Hua4 Qi2" (THQ)
- (Latin) Hànyǔ Pīnyīn: TuìHuàQí [ Tuì Huà Qí ]
- (英文翻譯) English Translation: "involution period"
- (西語翻譯) Traducción Español: "periodo de involución"
- (日文翻譯) 日本語翻訳: "回復期間"